Global Patent Index - EP 0570932 A2

EP 0570932 A2 19931124 - Styrenic block copolymer and process for producing same.

Title (en)

Styrenic block copolymer and process for producing same.

Title (de)

Styrol-Block-Copolymer und Prozess zu seiner Herstellung.

Title (fr)

Copolymère bloc styrénique et son procédé de préparation.

Publication

EP 0570932 A2 19931124 (EN)

Application

EP 93108144 A 19930519

Priority

JP 12859692 A 19920521

Abstract (en)

There are disclosed a styrenic block copolymer having a reduced viscosity of 0.01 to 20 dl/g (0.05 g/l in 1,2,4-trichlorobenzene at 135 DEG C) which comprises highly syndiotactic styrenic-polymer segments and 10<-><4> to 10 mol% of heteroatom-containing styrenic polymer segments; a resin composition comprising the above styrenic block copolymer and a thermoplastic resin, an inorganic filler or an organic filler; a multi-layer material comprising at least one layer composed of the above styrenic block copolymer or the above resin composition; and a process for producing the above styrenic block copolymer which comprises polymerizing a styrenic monomer in the presence of a specific catalyst and adding a heteroatom-containing styrenic monomer to successively proceed with copolymerizaiton reaction. The above-disclosed styrenic block copolymer and the resin composition exhibit excellent compatibiity and adhesivenesss, and the multi-layer material is expected to find a wide range of applications in automobile parts, electrical and electronic parts as well as film, sheet, etc.

IPC 1-7

C08F 297/06; C08L 25/18; B32B 27/30

IPC 8 full level

B32B 27/06 (2006.01); C08F 297/06 (2006.01); C08L 25/06 (2006.01); C08L 53/00 (2006.01); C08L 53/02 (2006.01); C08L 101/00 (2006.01)

CPC (source: EP US)

B32B 15/082 (2013.01 - US); B32B 15/20 (2013.01 - US); B32B 27/06 (2013.01 - EP US); B32B 27/08 (2013.01 - US); B32B 27/20 (2013.01 - US); B32B 27/302 (2013.01 - US); C08F 297/06 (2013.01 - EP US); C08L 25/06 (2013.01 - EP US); Y10T 428/31855 (2015.04 - EP US)

C-Set (source: EP US)

C08L 25/06 + C08L 2666/02

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0570932 A2 19931124; EP 0570932 A3 19931208; EP 0570932 B1 19970723; AT E155800 T1 19970815; DE 69312393 D1 19970904; DE 69312393 T2 19971106; JP 3121116 B2 20001225; JP H05320281 A 19931203; US 5391626 A 19950221; US 5418290 A 19950523

DOCDB simple family (application)

EP 93108144 A 19930519; AT 93108144 T 19930519; DE 69312393 T 19930519; JP 12859692 A 19920521; US 31275994 A 19940927; US 6374593 A 19930520